Chasidut su Genesi 39:20

Genesis 39,20. “Joseph’s master took him and placed him ‎in the jail reserved for high ranking prisoners (prior to their ‎judgment).” ‎ויהי שם בבית הסהר‎. “He remained there for a ‎considerable period.” On the face of it, this last sentence appears ‎superfluous. At first glance, it appears as if when G’d ‎unaccountably sends afflictions on people the “victim” if truly ‎G’d-fearing, is not supposed to react by “physical ‎countermeasures,” but is supposed to continue to have faith in ‎G’d; as a result he will experience that in due course this ‎‎“harmful” decree will prove to have been beneficial. This is an ‎example of what we have been taught in Taanit 21 that what ‎appear to be painful reverses should be met with the ‎acknowledgment of ‎גם זו לטובה‎, “this too has been meant for our ‎ultimate benefit.”‎
The line describing Joseph as spending a considerable time in ‎prison, although he was innocent of the charges against him, is to ‎hint to us that through his remaining there he eventually ‎interpreted the dreams of Pharaoh’s cupbearer and chief baker, ‎only to come to Pharaoh’s attention and start a magnificent ‎career. Inaction, not publicizing his plight, leaving his fate in the ‎hands of G’d, was the instrument that was most effective.‎